Patent · US Active

Device for pressure-based load detection

US7546760B2 · kind B2 · utility

1Cited by

8References

5Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Heiko Konrad · Hockenheim, DE
Maximilian Engl · Friedberg, DE

Key dates

Filing date	Mar 27, 2008
Grant date	Jun 16, 2009
Priority date	—
Expiry date	Mar 27, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2200/0408
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A device for intake manifold pressure-based determination of the air mass flowing into the cylinder combustion chamber is provided. A logic unit determines the inflowing air mass based on the intake manifold pressure using a calculation model for load detection that determines the intake manifold pressure in an upper partial range of the intake manifold pressure. A sensor device for direct detection of the intake manifold pressure measures the intake manifold pressure only in a lower partial range of the intake manifold pressure in the internal combustion engine. The logic unit determines the inflowing air mass as a function of the intake manifold pressure measured by the sensor deice when within the lower partial range of the intake manifold pressure, and based on the intake manifold pressure determined by use of the calculation model when within the upper partial range.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.